EP 2105630 A1 20090930 - Damping force variator
Title (en)
Damping force variator
Title (de)
Dämpfungskraftvariator
Title (fr)
Variateur d'amortissement
Publication
Application
Priority
JP 2008079748 A 20080326
Abstract (en)
The present invention provides a damping force variator (1) that can damp a vibration even if the frequency of the vibration is high. The damping force variator (1), which applies a magnetic field to a magnetic fluid (MRF) flowing through an orifice (9) to vary the magnitude of a damping force, has a float (13) that moves in the orifice when the magnetic fluid flows. If the damping force variator has a cylinder (4) that is filled with the magnetic fluid, and a piston (3) that slides in the cylinder to apply a pressure to the magnetic fluid, the damping force variator functions as a damper that damps a vibration transmitted from the cylinder (4) or the piston (3).
IPC 8 full level
F16F 9/53 (2006.01)
CPC (source: EP US)
F16F 9/504 (2013.01 - EP US); F16F 9/5126 (2013.01 - EP US); F16F 9/535 (2013.01 - EP US)
Citation (applicant)
- US 2004124051 A1 20040701 - LUN SAIMAN [US], et al
- US 2008053763 A1 20080306 - WERELEY NORMAN [US], et al
- GB 2382638 A 20030604 - VISTEON GLOBAL TECH INC [US]
Citation (search report)
- [XY] US 2004124051 A1 20040701 - LUN SAIMAN [US], et al
- [Y] US 2008053763 A1 20080306 - WERELEY NORMAN [US], et al
- [Y] GB 2382638 A 20030604 - VISTEON GLOBAL TECH INC [US]
- [A] US 2006016649 A1 20060126 - GORDANINEJAD FARAMARZ [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2105630 A1 20090930; EP 2105630 B1 20100519; DE 602009000028 D1 20100701; JP 2009236139 A 20091015; JP 4638921 B2 20110223; US 2009241890 A1 20091001
DOCDB simple family (application)
EP 09156336 A 20090326; DE 602009000028 T 20090326; JP 2008079748 A 20080326; US 41092109 A 20090325